Q12Header code — not billable

Congenital lens malformations

Chapter
17. Congenital malformations, deformations and chromosomal abnormalities
Category
Q12
Effective date
October 1, 2026

Related codes in category Q12

Q12.0Congenital cataractYesQ12.1Congenital displaced lensYesQ12.2Coloboma of lensYesQ12.3Congenital aphakiaYesQ12.4SpherophakiaYesQ12.8Other congenital lens malformationsYesQ12.9Congenital lens malformation, unspecifiedYes

Frequently asked questions

What is ICD-10 code Q12?

Q12 is an ICD-10-CM diagnosis code for Congenital lens malformations.

Is Q12 a billable code?

No. Q12 is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is Q12 in?

Q12 falls under Chapter 17: Congenital malformations, deformations and chromosomal abnormalities.

When did Q12 become effective?

Q12 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to Q12?

Q12 belongs to category Q12, which includes 7 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.